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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialParameterCollection
| Type | Name | Description | |
|---|---|---|---|
  |
void | PreEditChange
(
FProperty* PropertyThatWillChange |
This is called when a property is about to be modified externally |
  |
void | PreEditChange
(
FEditPropertyChain& PropertyAboutToChange |
This alternate version of PreEditChange is called when properties inside structs are modified. |